<!--
 * @Author       :
 * @Date         : 2021-12-21 23:48:53
 * @LastEditors  : Please set LastEditors
 * @LastEditTime : 2022-01-27 21:41:59
 * @Description  : 登陆页面
-->
<template>
  <div class="login-container">
    <el-form class="login-form" :model="loginForm" :rules="loginRules" ref="loginFromRef">
      <div class="title-container">
        <h3 class="title">{{$t('msg.login.title')}}</h3>
        <lang-select class="lang-select"></lang-select>
      </div>
      <!-- username -->
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon="user" />
        </span>
        <el-input v-model="loginForm.username" placeholder="username" name="username" type="text"></el-input>
      </el-form-item>
      <!-- password -->
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon="pass" />
        </span>
        <el-input
          v-model="loginForm.password"
          placeholder="password"
          name="password"
          :type="passwordType"
        ></el-input>
        <span class="show-pwd" @click="onChangPwdType">
          <el-icon>
            <svg-icon :icon="passwordType === 'password' ? 'close-eyes' : 'open-eyes'" />
          </el-icon>
        </span>
      </el-form-item>

      <!-- 登录按钮 -->
      <el-button
        type="primary"
        style="width: 100%; margin-bottom: 10px"
        :loading="loading"
        @click="handlerLogin"
      >{{$t('msg.login.loginBtn')}}</el-button>
      <div class="tips" v-html="$t('msg.login.desc')"></div>
    </el-form>

  </div>
</template>

<script setup>
import LangSelect from '@/components/langSelect'
import { ref } from 'vue'
import { validatePassword } from './rules'
import { useStore } from 'vuex'
import { useI18n } from 'vue-i18n'
// 数据源
const loginForm = ref({
  username: 'super-admin',
  password: '123456'
})
// 验证规则
const i18n = useI18n()
const loginRules = ref({
  username: [
    {
      required: true,
      trigger: 'blur',
      message: i18n.t('msg.login.usernameRule')
    }
  ],
  password: [
    {
      required: true,
      trigger: 'blur',
      validator: validatePassword()
    }
  ]
})

// 处理密码框文本显示
const passwordType = ref('password')
// template 中绑定的方法 直接声名即可
const onChangPwdType = () => {
  // passwordType的值为 password 的时候 改为 text
  // 使用ref声明的数据 在script中使用需要加value ，但是在template 中使用不需要加 value
  if (passwordType.value === 'password') {
    passwordType.value = 'text'
  } else {
    passwordType.value = 'password'
  }
}
// 处理登录
const loading = ref(false)
const loginFromRef = ref(null)
const store = useStore()
const handlerLogin = () => {
  // 1.表单校验
  loginFromRef.value.validate(valid => {
    if (!valid) return
    loading.value = true
    store.dispatch('user/login', loginForm.value).then(() => {
      loading.value = false
    })
      .catch((err) => {
        loading.value = false
        console.log(err)
      })
  })
  // 2.出发登录操作
  // 3.进行登录后处理
}
</script>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;
$cursor: #fff;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;

    :deep(.el-form-item) {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background-color: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }
    :deep(.el-input) {
      display: flex;
      align-items: center;
      height: 47px;
      width: 85%;

      input {
        background: transparent;
        border: none;
        border-radius: 0px;
        padding: 12px 5px 12px 15px;
        color: $light_gray;
        cursor: $cursor;
      }
      .el-input__inner {
        box-shadow: none;
      }
    }
  }
    .tips {
      font-size: 16px;
      color: white;
      line-height: 20px;
    }
  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }

    .lang-select {
      position: absolute;
      top: 5px;
      right: 0;
      width: 20px;
      height: 20px;
      cursor: pointer;
    }
  }
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 12px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
